Ecosystem Diversity and Interactions

The video introduces fifth-graders to ecosystems, focusing on the interaction of living and nonliving elements. It explains biotic and abiotic components, ecosystem diversity, and the roles of populations and communities. The video also covers competition, limiting factors, habitats, niches, and the impact of human activities on ecosystems. Students are encouraged to explore these concepts further through assignments.

What is the primary source of energy for ecosystems?

• The Moon

• The Sun

• Wind

• Volcanoes

Which of the following is a biotic component of an ecosystem?

• Rocks

• Water

• Air

• Plants

What term describes the non-living parts of an ecosystem?

• Biotic

• Inorganic

• Abiotic

• Organic

In an ecosystem, what is a group of organisms of the same species called?

• Niche

• Population

• Habitat

• Community

What is the term for the interaction where organisms compete for resources?

• Symbiosis

• Predation

• Competition

• Mutualism

What defines an organism's niche in an ecosystem?

• Its color

• Its size

• Its role and function

• Its physical appearance

Which animal is an example of having a narrow niche due to its specific diet?

• Lion

• Tiger

• Elephant

• Panda

Why is biodiversity important in an ecosystem?

• It makes ecosystems less stable

• It provides more resources

• It increases competition

• It reduces the number of species

Which ecosystems are typically more diverse?

• Tundras

• Deserts

• Savannas

• Coral reefs

How do human activities generally affect biodiversity?

• They increase species diversity

• They have no effect

• They reduce species diversity

• They create new species